Hi All, I'm trying to get the ROACH1 to run at 325MHz (5GSPS) in a simple spectrometer. This is obviously pushing the limits of the hardware - I'm kind or arbitrarily tweaking the latencies in these blocks to try and meet timing requirements. Are there any guidelines/notes I should be following - i.e should certain latencies match such as Add and bram where as say Fanout doesn't matter. Also are there any limits on these - i.e say 20 rather than 2?
I'm sure if my understanding of the PFB and FFT was more than minimal this would be obvious... R -- Ross Williamson Research Scientist - Sub-mm Group California Institute of Technology 626-395-2647 (office) 312-504-3051 (Cell)
